Hydroides ezoensis

Other invertebrates
IUCN: Not evaluated

Usual depth0–11 m
Water temperature8–29 °C
Best monthsMay, June, and July
How commonOccasional

About this species

Hydroides ezoensis is a species of tube-forming annelid worm in the family Serpulidae. It is native to the temperate northern Pacific and the central Indo-Pacific and is found in the intertidal zone and on submerged rocks, shells, pilings, jetties and boats.

Text from the Wikipedia article “Hydroides ezoensis”, licensed CC BY-SA 4.0. Read the article

Where and when

Where it has been recorded

Worldwide

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Best months

Worldwide (open data)

January: 39 records
February: 48 records
March: 37 records
April: 52 records
May: 104 records
June: 63 records
July: 74 records
August: 12 records
September: 36 records
October: 49 records
November: 59 records
December: 51 records

Depth and water temperature

Depth

Mostly recorded at 0–11 m · Deepest record: 41 m

0–10 m: 39 records
10–20 m: 3 records
20–30 m: 0 records
30–40 m: 0 records
40–50 m: 2 records

Water temperature

Recorded in surface water of 8–29 °C

8–10 °C: 5 records
10–12 °C: 0 records
12–14 °C: 51 records
14–16 °C: 60 records
16–18 °C: 8 records
18–20 °C: 190 records
20–22 °C: 295 records
22–24 °C: 3 records
24–26 °C: 4 records
26–28 °C: 3 records
28–30 °C: 1 records

Names and classification

Names in 3 more languages

French: Hydroïde d'Ezo
Japanese: ｴｿﾞｶｻﾈｶﾝｻﾞｼ, エゾカサネカンザシゴカイ
Korean: 우산석회관갯지렁이

Other scientific names: Hydroides esoensis

Similar species

Sources and credits

Names and taxonomy: WoRMS (CC BY 4.0) and the GBIF Backbone (CC BY 4.0). Photos: iNaturalist observers, each under the licence shown (CC0, CC BY or CC BY-SA).

Depth, temperature, months and maps: records from OBIS and GBIF under CC0 or CC BY.
Descriptions: Wikipedia, licensed CC BY-SA, each linked to its article.
Conservation status as published by GBIF (IUCN Red List).
834 open-data records from 1984 to 2025.
Species data updated November 3, 2026.

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